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Arq. neuropsiquiatr ; 71(5): 275-279, maio 2013. tab, graf
Article in English | LILACS | ID: lil-674225

ABSTRACT

Although neuromyelitis optica (NMO) is known to be a more severe disease than relapsing-remitting multiple sclerosis (RRMS), few studies comparing both conditions in a single center have been done. Methods: Comparison of our previously published cohort of 41 NMO patients with 177 RRMS patients followed in the same center, from 1994 to 2007. Results: Mean age of onset was 32.6 for NMO and 30.2 for RRMS (p=0.2062) with mean disease duration of 7.4 years for NMO and 10.3 years for RRMS. Patients with NMO had a higher annualized relapse rate (1.0 versus 0.8, p=0.0013) and progression index (0.9 versus 0.6, p≪0.0001), with more patients reaching expanded disability status scale (EDSS) 6.0 (39 versus 17%, p=0.0036). The odds ratio for reaching EDSS 6.0 and being deceased due to NMO in comparison to RRMS were, respectively, 3.14 and 12.15. Conclusion: Patients with NMO have a more severe disease than patients with RRMS, including higher risk of dying of a demyelinating disease. .


Embora a neuromielite óptica (NMO) seja reconhecida como mais grave que a esclerose múltipla remitente recorrente (EMRR), existem poucos estudos comparando as duas doenças em um único centro. Métodos: Comparação de nossa coorte publicada de 41 pacientes com NMO com 177 pacientes com EMRR seguidos no mesmo centro, de 1994 a 2007. Resultados: A média de idade inicial foi de 32,6 anos em NMO e 30,2 anos em EMRR (p=0,2062), com tempo médio de doença de 7,4 anos para NMO e 10,3 anos EMRR. Pacientes com NMO apresentaram maior taxa anualizada de surtos (1,0 versus 0,8, p=0,0013) e índice de progressão (0,9 versus 0,6, p≪0,0001), com mais pacientes atingindo EDSS 6,0 (39 versus 17%, p=0,0036). Os riscos relativos de se alcançar 6,0 EDSS e falecer em decorrência de NMO em comparação com EMRR, foram, respectivamente, 3,14 e 12,15. Conclusão: Pacientes com NMO têm uma doença mais grave do que os pacientes com EMRR, incluindo maior risco de morrer de uma doença desmielinizante. .


Subject(s)
Adult , Female , Humans , Male , Young Adult , Multiple Sclerosis, Relapsing-Remitting , Neuromyelitis Optica , Age of Onset , Disease Progression , Epidemiologic Methods , Multiple Sclerosis, Relapsing-Remitting/mortality , Multiple Sclerosis, Relapsing-Remitting/pathology , Multiple Sclerosis, Relapsing-Remitting/physiopathology , Neuromyelitis Optica/mortality , Neuromyelitis Optica/pathology , Neuromyelitis Optica/physiopathology , Recurrence , Risk Factors , Severity of Illness Index , Time Factors
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